Publications pe ́riodiques 25 History 13 Zeitschrift 11 Politics and government 10 UE/CE Etats membres 8 Droit 6 Law 6 Research 6 Histoire 5 Social conditions 5 Study and teaching 5 Economic conditions 4 Economic history 4 Europese integratie 4 Internationale betrekkingen 4 Law and legislation 4 UE/CE Droit 4 Diplomatic relations 3 Economic integration 3 Environmental law 3 European federation 3 Europees recht 3 Foreign relations 3 Human rights 3 International economic integration 3 Medicine 3 Political science 3 Regional planning 3 Regionalforschung 3 UE/CE Inte ́gration 3